Mast for space or wireless telegraphy.



y, A. E.' BRowN. MAST-FOR SPACE 0B WIRELESS TELEGRAPHY.

' APPLICATION FILED AUG. 3,1906. 921,075, Patented-May 141, 1909.

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r l L l INVENTOR g A; ATTORNEY A. E. BRUWNQ MAST FOR'SPAGE 0R WIRELESS TBLEGRAPHY.

APPLICATION FILED AUG. 3, 1906.

Patented May 11, 1909.

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-AQ E.' BROWN. MAST FOR SPACE 0R WIRELESS TELEGRAPY.

APPLICATION FILI-3D AUG. 3, 1906.'

' Patented May 11, 1909.

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MAST FOR SPACE 0B WIRELESS TELEGRAPEY.

APPLICATION FILED AUG. 3,1908.'

Patented May 11, 1909.

4 SHEETS-SHEET 4.

/lvvE/von y@v i Ano/mfr I WITNESSE Beit known that I, Ammann E. BROWN,

- UNITED. srATEs OFFICE ALEXANDER E. BROWN, oF'cLEvELAND, OHIO, ASSIGNOR 'ro THE BROWN HOISTING MAGHINEIW conrANnoF CLEVELAND, oni

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of Cleveland, in the 'countyof Cuyahoga and ,State of Ohio, have invented-a new and useful Mast for S ace 0r Wireless Telegraply; and I hereby eclare the following to 'a ful=lc1ear, andi exact description of the same, reference being hadto, the drawings accoma tion, erein similar parts-in each case are denoted bythe same referential letters My invention relates, generally, to the ctlss of lalplpgaratis used ce oli1 wireless t egrap ,an, 'i r ,tot emeans employed to radially-:ir receive electrically producedI vibrations from an elevated point above the lstations.

As is well understood, prior to n1' present invention, the highest elevations o tainable in the connection were, for the most part, limited to wooden, or metal frame-work towers or masts, ythat carried and supported wire conductors between theirtops and the charging plant below. From the nature of their construction such towers or masts cannot be carried tothe requisite hei ht for' the I United States fullest eiliciency without prohi itive eir-V pense, and, at best, are short-lived, and sub'- Ject to vexcessive wind-preure- .Referring to the drawings, Fi e 1 is an elevation of the'mast, as a who e, with the supporting guys, at the front, shown as broken.- Fig. 2 is a form ofinsulated base for the mast with the lowermost ortion of the latter in place on the same. Fig. 3 is a vertical section of a portion of the insulated base 'shown in Fig. 2, through the line a: :c of that figure, Fig. 4 is a plan of said base, with the mast and its socket removed, showing the inclosing, mold used in `its construction, and, Fig. 5, is a vertical section of said base through the line y y of Fig. 4.

vM is the mast proper, or the upright columnar part or element of the entire construction.' While, in a broad sense, this part is not conned to a strictly cylindrical shaft, or to a shaft made up in segments or sections, as shown, I have nevertheless selected for the purposes of this description, and specifically claim, a'mast when made up of such sections, by the method or process, that is the subject of an application y me for a patent, filed simultaneously with this application, and healing Serial Number 329,097. It consists of a series of o! Letters Patent.

I med Amst 8, Serial llo.

nylugV and makmg a part of applica- 4sheet-metal of the kind known as Patented Igny 11, 1909.

duly superimposed onjeu n the other' and boned Va ether, unta the gsimd h for the mast -anchored at"correspondingl'y located points A, about the site of the'mast. These 'guys' must be thoroughly insulated from the mast, which may be done by the insertion, intermediate of their terminals, of proper electrical non-conductive material or v A represents the crown wires, or antennae, connected with the mast M at its top and, wire, or likeelectrical. conductors, leadin to a' charging plant, should lbe connected with the mast or shaft proper at or near its bottom. Said mast is provided centrally of its loweror butt end with a downwardly projecting socket-casting S, of suitable dimensions to it over and upon a ball casting T, that is firmly embedded, for the purpose,

hollow segments of sheet steel,

is attained. At suitab e intervals throughout its height, annular bands p,

in the concrete cap or top C of the insulatiiig mast, upon a firm foundation f, of masonry or other suitable supporting body. A' bed of grout G', or other hardening plastic material, is next spread above the' foundation f, although, as shown in the drawings, in order to thereby obtain a firm level surface, l choose to interpose between such bed and the foundation' f, a plate F of corru ated erroinclave, after its upper and lower surfaces have been duly. coated with cement (Fi 3). In laying the bed of grout G', as wel as the subsequent beds, it will be necessary to use surrounding molds to hold the grout in lace while in its plastic condition, and untllthe same has hardened, as well as the sand to be interposed, as hereinafter explained. Such molds are indicated in the drawings by D D D2 D and D4 (Fig. 5). The horizdntaf area or dimensions of the base B must, of course be so calculated as to permit the inclusion therein, as hereinafter explained, of such number of insulators, as together, shall be adequate to sustain the entire weight of the mast M, when vertically mounted on said base.

While the grout is in its plastic condltlon, within the mold D', I embed within the same, to a depth that will insure a suiiicient layer beneath to equalize any irregularities on their lower edges, an assemblage of insulators I I, preferably in the shape of hollow mounted cones, of porcelain, or other non-conductive material. These may be arranged in their places in any suitable rela. tion to eachother that will nearest distribute the weight they are to bear equally between them. As shown in the drawings (Fig. 4) they are arranged in parallel courses throughout the bed, so as, together, to form a square, each insulating member of which is equa-'distant from the next adjoining member, in every case. Afterthe first 'assemf blage of insulators, I, have thus been seated within this bed of grout, and surrounded by the mold D' ig. 5), the bed is allowed to harden, and the interspaees between the several insulators is then filled up to a short distance of their top, with sand, or like granular matter, to serve as a temporary .support for the next su layer ogrout to be superimposed thereon.

In order to intercept and prevent any liow of moisture from such layer to the sand beneath, and thereby lessen its granular character, it will be found good practice, i

before the second bed of grout is made, to lay over'the entire upper surface of this layer of sand, a. sheet of oil-paper, or other material that is impervious to moisture, having wr in the same to allow it to be passed over and around the tops of the insulators that project above the sand. A second layer of grout G2, of like dimensions as thetrst layer Gr', is. now spread over the said first blage of insulators I, and, to secure the best results, a second layer .or plate of ferro-inclave, F', may be placed above and upon the layer of grout G2, (Fig.

` 3) and, above a thinstratnm of grout y to cement together, and irmly fix in their relative positions, the ferro-inclave F and, a layer or. platev of ferro-inclave F2 cross-wise and above said stratum g and the plate F beneath.

y The several strata built up above` the first tier of insulators I, as just described, securely-bind the latter in place, and, at the same time, aiford a lirm base or foundation. In this process, the mold 1g)2 is applied above land around D and the space to be occupied by asecond assemblage of insulators, I', I', the new bed of grout (nl2 is laid in the same manner as before, and said second assemblage securelyembedded therein, and a second section of the base B completed in the same manner as was the first. In like manner a third section of said base may now be added above'v the'second, comprising an assemblage of insulators I2 I2 (Figs. 2 and 5), and, `still further sections, until, by this means, such a degree 01E-insulation for the base B is obtained as will be entirely adequate for the voltage to be used. Over and above the insulating portion of said base is preferably builtv up in a mold D4, a heavy top or cap of concrete, to insure a uniform distribution of weight over the area of the insulat' 0' base B, in which-as before stated, is centrally embedded the ball casting T.

It will of course be understood that, except as the same are expremly and specifically claimed herein, I do not intend to limit my invention-structure, in the broader sense, to the precise details and method of making the same as illustrated and described. In that sense, for instance, the base may consist o any form of insulated construction that suliees for the functions required, or, the mast itself, of being made up in the particular segmental manner shown, may be in a single piece, have a non-cylindrical form, and, generally be varied in any respect from that shown that shall not be ini consistent with the purposes to be served.

at claim and desire to secure by Letters Patent is- A method of building up an portion or section of a supporting base for a mast for space or wireless tclegraphy, conof lirst spreading over a lower seetion of such base a of hardening plastic material temporary retaining molds, next, embedding within said material, While plastic, an assemblage of insulators, and filling the interspaees between the same with sand or like granular matter to near' their tops, and, thereafter, suvely spreading similar material upon said sand or like granular matter above and between, said tops, and embedding similar` lages within the same and their interspas with sand or like granular matter, as before, until the insulating poron or" section of saidbaseisbuiltnptothereq 'tedistanee all substantially as shown and described.

In the resenee of- A; Ywm

RI B, und.: MAN.. 

